Clay-pulverizer



l (No ModeL) f W. ,ANDRUS.

' CLAY. PULV'BRIZER.

No'. 286,520. Patented Oct. 9, 1883.-'

" i UNITED STATES CLAY-PULVEBKZER.

-hwiLLrnM n'NDnUs, or Knonc'n, roues..

srnorrron'rron farming para of Letters Patent No. 286,520, dated .october Q,'1ese.

"' y Application mea Augusrsnieex; (No man.)

. 1 J To all wh; m it may concern.- andjto which is securely attached A,two on y Beit known that I, W'ILLLIM Amiens, a more castor wrought iron spiders or hubs, E, citizen of the United States, residing at Ke'ohaving radial arms F, the outer ends of which kuh, in the county of Lee and State of Iowa, are beveled oli to receive the blades or crossf haveinventerhcertain new and useful Improve` bars G. It will be observed that by/bevehng ments in Clay-Pnlverizers, of which the folorf the ends of the arms Fto receive the blades i n lowing is a specification, referencev being had i therein to the accompanying drawings.

' My invention relates to improvements in clay pulverizers and disintegrators for reducing .clay to a fine-powdered condition, and at l the same time freeing it of pebbles, small stones, roots, Snc., preparatory to being pressed into bricks, tiles, or manipulated into other forms r'of clay obj ects or vessels, and is designed as an e improvement on my pulverizer for which Letters Patent No. 2715,14? were granted to me April 24, 1883. The object et' myinvention is to produce a machine 'which will crush or maugle the clay f f' orother materiahand at one and the same op l eration sift or screen it in order to remove or l separate therefrom stones,pebbles,roots, grass,

weeds, or other objectionable matter.

My invention consists in mounting a feeding- Vroll, two crushing or reducing rolls, and a beater in bearings in a suitable frame and casing,

and in partially surrounding the beater with a wire screen in such a ,manner that when the clay y 3o 'leaves the lcrushixng-rolls it will be thrown forward through the screen by the action of the beaters, while the stones, sticks, Ste., will be 1 carried! downward and to the rear of the machine, from whence they can be removed. My invention consists,further,in certain dci vices for securing the wire screen in position, as will more fully hereinafter appear.

L Referring to the drawings, Figure lis a vertical sectional View on the line :c :v of Fig. 1. Fig. 2 is a longitudinal vertical sectional View on the line 51,1 y of Fig. 1. l

A is the frame-work of the machine, which ymay be of any suitable or desirable form or made from any suitable material.

In the top of the machine and mounted in suitable bearings are located the iiuted feedingroll B and crushing er reducing rolls C C.

These are located within a' suitable feed-hopper, and are essentiallyr of the same construe tion as the feeding and crushing rolls in my patent heretofore referred to.

D is a shaft mounted inbearin gs in the frame l G the blades are set atan ang-le to a line drawn through the center of the shaft D,`so that the clay will 'be caught as' it comes from the crush- 'ing or disintegratiug rolls, and is readilyr thrown off of the blades against the screen. It will be noticed that as the clay or other materiaLleaves the disintegrating or crushing rolls it is caught by the blades G and thrown forward with much force against and through the screen, while the pebbles, roots, d'c., are carried down to the bottom of the screen er thrown out ofthe opening H inthe rear of .the machine by the action of the blades.

I will now proceed to describe the devices I employ for holding the wire screen in position and at a proper distance from the blades or beaters. n

I aresegmental plates, provided with inwardly-projecting flanges, c, secured to the 1nner ends ofthe casing b by means of bolts o, passing through the slots d, and by which means the plates and screen are rendered adjustable toward or from the bottom of the casing, to compensate for the wear of the blades or beaters.

K is the wire screen, and is held in position by means of bent rods Inwhich force the screen against the projecting flange a. ofthe plate I, the ends of said bent rods being screw-threaded to receive the nuts e, whichr impinge on the upper side of the horizontal flange c of the plate I, so that by tightening up the screws e the wire screen will be tightly clampedgbetween the rod L and the ilange a.

The beater-shaft and crushing and feeding rolls are connected together and driven by a series or chain of spur or pinion wheels of any suitable or convenient arrangement and connected to any suitable power by any of the well-known devices, In the drawings I have lshown the power as applied to the beater-shaft I) by means of abandm-heeh D', said shaft bti- IOO ing connected or geared to the rolls C C B by pinion-wheels, as shown.

The operation of my machine is as follows: 'Ihe clay or other material is ied into the hopper, (which 4is indicated by dotted lines in Fig. 1,) and is passed through the crushing-rolls. As soon as the clay emerges from the crushing-rolls it is caught by the blades or beaters G and thrown forward against the screen with some considerable force, and the loose free clay is driven through the meshes of the screen, while the stones, pebbles, roots, grass, 85e., are either thrown out through the aperture H or removed from the bottom of the screen by hand.

y'Having thus described my invention, what I claim is l. The method herein described of reducing and screening clay, the same consisting in crushing the clay between rolling surfaces and then driving or forcing it violently against a perforated or screening surfacev by means of blades or beaters, as set forth.

2. A clay reducer or -pulverizer consisting of the following elements: a pair of crushingrolls, a rotary beater provided with blades located directly below the crushing-rolls, and a screen inclosing the lower portion of the casing in which the above-mentioned devices are located.

5. .The plates I, for holding the screen in position, provided with the flanges a and a and adjusting-slots d, as and for the purpose set forth.

6. The plates I, provided with the anges a' and a', in combination with the screen K, rod L, and screw-nuts e e, whereby the screen is held in position within the casing of the machine, as set forth'.

In testimony whereof I affix my signature in l presence of two witnesses.

WILLIAM ANDRUS.

Vitnesses:

C. A. NEALE, J. C. WILDMAN. 

